"The company is also going to see if it can do something to that effect with a new helmet for Raptor pilots. So far, it has upgraded to a Scorpion helmet-mounted display, which Merchant said is “basically just a reticle” that gives the ability to employ AIM-9X targeting by looking off axis."

Read the article and perused this thread (thanks for the article BTW). I apologize for this, but I'm still not clear on two points:

1) Is the Raptor flying today (operational units) with the AIM-120D?

and..

2.) Is the Raptor flying today (operational units) with the Scorpion helmet?

From what I can gather, the only birds flying with both are still in some sort of test program??

From what I've been reading, AIM-120D is part of Increment 3.2B, which has completed developmental testing in August, 2017 which led to operational testing which started in September, 2017 and was wrapped up in April, 2018. Production of 3.2B was approved this past summer and starting the summer of 2019, IOC is expected. Scorpion helmet was tested in 2013 but never materialized due to lack of funding.

The AIM-120D went to the Raptor last, because it needed it least urgently, compared to legacy aircraft. With its stealth, and high altitude/high speed launches, the earlier variants were deemed good enough till 3.2B.

I think while they didn't go for MADL in F-22 now, they probably will at some point. It definitely seems like F-22 community would like that and I'm sure F-35 community would like that too. Maybe next major upgrade?

I'm really intrigued about this comment:

In 2024, funding kicks in for sensor enhancements, a project that is expected to run for several years.

"What we’re looking for is a sensor to complement the radar that’s on the jet,” Merchant said.

There isn’t much detail available yet about upgrades that are still six years away, but he stressed that it goes back to the Raptor’s mantra of “first look, first shot, first kill.”

“I want to maintain that first-look capability and be able to get a shot off,” Merchant said. “So I need a target-quality track at extended ranges outside what my radar can do today.”

So some sensor that complements the radar while having longer range with target-quality track at those extended ranges? That sounds really interesting and I really wonder what this could be. With sensor fusion IRST could be that against VLO stealth targets, but that would require precise range information which could be only had with radar giving the range. In some cases triangulation might give that, but it's not that reliable method with IRST systems. I really doubt some new advanced ESM system could give target-quality tracks at extended ranges.